Amateur
- 181
- NYAA Starfest
- Canada's largest annual observing convention and star party with information and archive.
- 184
- Rocky Mountain Star Stare
- What's new, gallery, ATM walkabout, stories, schedule, rules, fees, registration, and directions.
- 188
- The Telescope Review Web Site
- Beginner's advice and articles, and telescope, eyepiece and accessory reviews.
- 189
- All About Telescopes
- Information on refracting, reflecting and radio telescopes, details on amateur telescopes, eyepieces, mounts, lenses and software.
- 190
- Amateur Telescope Optics
- Presents information on aberrations, obstruction effects, and reflecting, refracting, and catadioptric objectives, and the eyepiece and eye.
- 191
- Collimating Newtonian Optics
- Consists of two steps: aiming the eyepiece axis at the center of the primary, and aiming the primary at the center of the eyepiece.
- 193
- Mike Barrell's Astronomy Page
- Equipment information, alignment tips, images, planet finder, ham radio/WB9DLC, and links.
- 194
- NexStar Resource Site
- Users guide, observer list, downloads, PC control, firmware, odds and ends, equipment reviews alignment guides, tracking test, and links.
- 195
- The Naperville Astronomical Association - Telescope Calculator
- A javaScript-driven calculator, which will compute the values of a number of paramaters for any telescope and eyepiece combinations entered.
- 196
- The Schmidt-Cassegrain Telescope Web Site
- Basics, observing, tips, photo basics, glossaries, and links.